AfterShokz Bluez open ear wireless headphones combine the convenience, reliability and performance of Bluetooth wireless connectivity with the comfort and safety of open ear bone conduction technology to provide consumers with an entirely new way to stay connected. Unlike conventional Bluetooth headphones and earbuds that use the eardrums to transmit sound, Aftershokz Bluez headphones utilize patent pending bone conduction technology to deliver sound through the listener's cheekbones to the inner ear. This enables anyone using them to make/take phone calls and stay connected to both what they are listening to and the outside world - from warning sounds outdoors while walking or driving to a nearby colleague in an office setting.